Samsung BN96-20973A Main Unit/Input/Signal Board BN41-01799A Please order by the part # below to ensure compatibility. Ordering by board # or TV model # will not guarantee compatibility with your unit. Please contact us with any questions: BN96-20973A Other Board #s and TV Model #s: BN41-01799A PN51E440A2FXZA PN51E450A1FXZA